64
model 2000 Ethernet Module Operation Manual
Chapter 6 Maintenance and Inspection
6
6.2 Troubleshooting
If the LEDs that indicate the status of the product show other than the normal indications
specified in Table 2-1 (page 10) in Chapter 2, or if an error is detected at a human
interface station, stop using the product and contact the nearest Toshiba service office
concerned.
For troubleshooting with the LEDs, see [Table 6-1 Troubleshooting with LEDs Item].
For how to read RAS data, system logs, etc., refer to the Operation Manual for the
Engineering Tool.
Note:
The memory backup time of the Ethernet module varies depending on the ambi-
ent module temperature as follows:
EN611, EN621, EN631, EN641:
24 hours or more (at 25
o
C)
EN651, EN661:
7 hours or more (at 25
o
C)
EN651A:
20 hours or more (at 25
o
C)
Because the information may become lost if power is switched off for a long time, collect
it as soon as possible using the Engineering tool or general-purpose serial
communication software (Hyper Terminal, an accessory to Windows, for example)
If you can not read data normally by serial communication, read back again.
In that case the log about serial communication may be traced.
Remember, however, that the backed up information is RAS data, system log, etc., and
does not include control data. Therefore, operation at restart will not be adversely
affected.
Table 6-1 Troubleshooting with LEDs Item
Item
LED indication
Status
Step to be taken
RUN
HLTH
L-A
L-B
Normal
operation
ON
ON
Blink or ON Blink or ON Normal
–
WDT
inhibit
Blink
ON
Blink or ON Blink or ON Wrong setting
Enable WDT with
internal jumper pin.
Contact Toshiba
service office
concerned.
Down
OFF
OFF
–
–
Module faulty
Replace module.
Contact Toshiba
service office
concerned.
